Excellent design and feature balance, no complaints Been using free version for long enough. Always been happy with it, so felt it was time I made a donation in the form of buying pro. Visual design is perfect. One suggestion I'd make is to consider adding an 'off' button (to exit). Might be taking skeuomorphism a bit far, however every time I finish using it, I always press (the power off sequence from my old casio) before remembering it's an app, not a physical device. I realise keys are a bit crowded (esp in RPN), but possible?
The best by far I spent some time time trying to find a decent scientific calculator for Android and can confidently say that this the best. It is intuitive, looks great, is simple but powerful and has all the features that you need. Finally it works exactly the same as the majority of pocket calculators. Love it!
About as close to perfect as you can get I'm an engineer. 30 years ago I'd have an HP-15 with all the RPN stuff I preferred to use. RealCalc for everyday use is the best thing out there. And, unlike my antiquated HP calculator, I don't need to go back to my desk to get it.
I have been using the free version of this app for a long time and I like it so much that I decided to go pro. The constant & conversion customisation is awesome. BUT can we have an option to change back to the non-pro key layout? I couldn't care less about degree/minute/second conversion and fraction but often use the x^2 button. I would like to be able to access it without the shift key. Another feature request: stat mode to calculate sum, squared sum, stdev and the like on a set of entered values.
I got my first calculator over 40 years ago. This is by far the best. Not as many functions as some but a very well chosen set. Configurable where it matters, you can't reskin it (it looks good as is) but you can do things like adjusting the keyboard feedback. One of the very few paid for apps that are great value for money.
The best calc on Android. I've been using the free version for a while and didn't really need the extra functions of the Plus version, but fair's fair - this is a great piece of work and I'm happy to pay the developer for it. There is no need to own a scientific calculator if you have this app.
* Homescreen widget now supports RPN (follows app by default, can be changed in settings).
* New delta-percent function.
* Support for Android 6.0 Marshmallow.
* Fixed possible crash on a few devices running 5.1 (Jiayu S3, Lenovo K3 Note).
Simple calculator with complete history (virtual tape, a.k.a. ticker tape style)